Tova Noel, a former prison guard at the correctional facility where convicted sex offender Jeffrey Epstein was found dead, is scheduled to testify Monday in a closed-door deposition before the House Oversight Committee.

Noel is one of two prison guards who were working on Aug. 9, 2019, the night before the financier was found dead in his cell. She previously told federal investigators that she believes she was the last person to have seen Epstein alive. New York City's medical examiner ruled Epstein's death a suicide in her autopsy report, but developments since — including reports of missteps by prison officials that night and a later-clarified discrepancy in security footage from outside Epstein's prison cell — have fueled conspiracy theories and speculation about his death.

The testimony is part of the committee's ongoing investigation into the federal government's handling of cases involving Epstein and his former girlfriend Ghislaine Maxwell.

A number of powerful figures from across the political spectrum and in finance, entertainment and beyond, have emerged in documents, pictures and emails from the Epstein files released by the Department of Justice. Inclusion in the files does not necessarily indicate wrongdoing, but the fallout has led to resignations and calls for more accountability.